AC voltage measuring instrument EQ

ACfrequencyindustrial

The moving-iron panel meters are mainly used for measuring AC currents and voltages in the frequency range of 15 … 100 Hz. They indicate the rms value of the wave, even with high harmonics, with a minor ininfluence on the accuracy. Our instruments are normally calibrated for sinusoidal AC. For current above 100A or high voltages, the instruments must be connected through measuring transformers. Movin iron instruments can be connected in any order without observation of polarity (ki) on the current transformer. Electical Data Overload capacity according to DIN 43780 Continuously 1,2 times rated value Short duration 10 x IN 5 s in ammeters 2 x UN 5 s in voltmeters The setting time is approximately 1 minute. Consumption Ammeters up to 15 A 0,5 VA Ammeters more than 15 A 0,8 VA Voltmeter between 1 – 4,5 VA Moving iron instruments Moving-iron movement with silicone oil damping. Pivot suspension with spring loaded jewel bearings for vibration and shock resistance. Scales 90º scale, cmpressed at the beginning. Coarse-fine division. For ammeters with overload scaling, it covers between 10% (for 1,2In) y el 35% (for 5In) of the total scale lenght